diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-23 02:11:49 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-03 18:15:53 -0500 |
| commit | 9df794d9275d41012909aaff3cab759e37871974 (patch) | |
| tree | ff17244321d7297c347351f4a42016ab9392d5d0 /arch/cris | |
| parent | d970e42897525adc836207b44ef64347e59d613e (diff) | |
| download | lwn-9df794d9275d41012909aaff3cab759e37871974.tar.gz lwn-9df794d9275d41012909aaff3cab759e37871974.zip | |
cris: don't leave ->uc_stack unitialized - we'll use its contents on sigreturn
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/cris')
| -rw-r--r-- | arch/cris/arch-v10/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/cris/arch-v32/kernel/signal.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c index 187237f655e6..9570946a6958 100644 --- a/arch/cris/arch-v10/kernel/signal.c +++ b/arch/cris/arch-v10/kernel/signal.c @@ -356,6 +356,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + err |= __save_altstack(&frame->uc.uc_stack, rdusp()); + if (err) goto give_sigsegv; diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c index 168b6958e2b8..1f29c692b7ef 100644 --- a/arch/cris/arch-v32/kernel/signal.c +++ b/arch/cris/arch-v32/kernel/signal.c @@ -365,6 +365,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext)); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + err |= __save_altstack(&frame->uc.uc_stack, rdusp()); if (err) goto give_sigsegv; |